NCHS maintains an active program in statistical research and methodology. The major components of that program are briefly described below.

Cognition and Survey Measurement
The National Laboratory for Collaborative Research in Cognition and Survey Measurement applies cognitive methods in questionnaire design research, and was a pioneering effort when established in 1985. In collaboration with other Center programs, the Laboratory develops and tests NCHS data collection instruments. It also supports a questionnaire design research program in collaboration with university scientists by means of research contracts.

Statistical Methods
Research is undertaken at the Center on analytic methods applicable to NCHS' registration systems and sample surveys. Current projects include the development of computer software for the analysis of survey data, methods for model and design-based State estimates, and random effect models for analyzing longitudinal data.

Statistical Technology
The Center conducts a program of contract and intramural research on automated statistical and graphical technology. Current applications include automated mapping, statistical computing methods, geographic information systems, statistical graphics, and statistical atlases.

Survey Design
The Survey Design program involves the design and evaluation of the sample plans for many of NCHS' surveys to improve their efficiency and analytical capability. Current research focuses on linked survey designs, designs for State telephone surveys, nonresponse adjustments, and estimation of sampling errors for rare events. In addition, the Center maintains an active program in monitoring data quality.

This page last reviewed November 5, 1999